88134640 has 40 divisors (see below), whose sum is σ = 223543728. Its totient is φ = 32048640.

The previous prime is 88134637. The next prime is 88134679. The reversal of 88134640 is 4643188.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 88134596 and 88134605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49197 + ... + 50956.

Almost surely, 2^88134640 is an apocalyptic number.

88134640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88134640 is an abundant number, since it is smaller than the sum of its proper divisors (135409088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88134640 is a wasteful number, since it uses less digits than its factorization.

88134640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100177 (or 100171 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 88134640 is about 9388.0051129087. The cubic root of 88134640 is about 445.0227484899.

The spelling of 88134640 in words is "eighty-eight million, one hundred thirty-four thousand, six hundred forty".